Khlong Butsabong (Thai: คลองบุษบง, in Thai pronounced as /kʰlɔ̄ːŋ bùt.sā.bōŋ/) is a watercourse in the provinces of Phetchabun and Phichit, Thailand, and part of the overall Chao Phraya River basin. It is a tributary of the Nan River in the lower Nan basin.